Skip to main content

Table 4 OR with 95% CI for the development of COPD in pneumoconiosis patients according to multiple logistic regression analysis

From: Prevalence and characteristics of COPD among pneumoconiosis patients at an occupational disease prevention institute: a cross-sectional study

Variable

Univariate analysis

Multivariate analysis

OR(95%CI)

P value

OR(95%CI)

P value

Age

2.31(1.68,3.19)

0.00**

0.90(0.87,0.93)

0.00**

BMI

0.83(0.60,1.17)

0.29

1.09(1.00,1.18)

0.043*

Smoking

1.01(0.91,1.32)

0.32

0.99(0.98,1.01)

0.30

Exposure time

1.18(0.91,1.54)

0.21

0.99(0.96,1.02)

0.44

Air drill type

1.46(0.90,2.37)

0.12

1.38(0.84,2.26)

0.21

Exposure type

1.13(0.61,2.07)

0.70

1.29(0.68,2.45)

0.43

Category

3.29(2.49,4.35)

0.00**

10.92(6.20,19.24)

0.00**

   

4.39(2.29,8.41)

0.00**

Cough

1.73(0.42,7.12)

0.45

1.76(0.42,7.38)

0.44

Sputum

0.51(0.14,1.82)

0.30

0.50(0.14,1.79)

0.29

Wheezing

2.84(1.74,4.60)

0.00**

2.94(1.79,4.83)

0.00**

Dyspnea

1.08(0.37,3.13)

0.89

1.12(0.38,3.34)

0.83

Chest tightness

0.98(0.51,1.90)

0.96

0.93(0.48,1.82)

0.83

  1. In univariate analysis model:
  2. Age (1 = 21–30,2 = 31–40,3 = 41–50,4 = 51–60,5 = 61–70,6 = 71–80)
  3. BMI (1 = Below normal, 2 = Normal, 3 = Overweight, 4 = Obesity)
  4. Smoking (1 = Never smokers, 2 = Mild smokers, 3 = Moderate smokers, 4 = Heavy smokers)
  5. Exposure time (1 = 0–10, 2 = 11–20, 3 = 21–30, 4 = 31–40)
  6. Air drill type (1 = No, 2 = Yes)
  7. Exposure type (1 = Silicosis, 2 = Coal)
  8. Category (1 = I, 2 = II, 3 = III)
  9. Cough: 1 = No, 2 = Yes, Sputum: 1 = No, 2 = Yes, Wheezing: 1 = No, 2 = Yes, Dyspnea: 1 = No, 2 = Yes,
  10. Chest tightness:1 = No, 2 = Yes
  11. In multivariate analysis, age, BMI, exposure time and SI were taken as covariate
  12. OR odd ratio, CI confidence interval
  13. *p<0.05, **p<0.01